package controller;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.Controller;@org.springframework.stereotype.Controllerpublic class HelloController implements Controller {	@RequestMapping("hello")	public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {		ModelAndView mv = new ModelAndView("hello");		mv.addObject("sb", 123);		return mv;	}}